11100090901 has 4 divisors (see below), whose sum is σ = 11106940204. Its totient is φ = 11093241600.

The previous prime is 11100090893. The next prime is 11100090929. The reversal of 11100090901 is 10909000111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10276687876 + 823403025 = 101374^2 + 28695^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100090901 - 2³ = 11100090893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100090941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422220 + ... + 3425461.

It is an arithmetic number, because the mean of its divisors is an integer number (2776735051).

Almost surely, 2^11100090901 is an apocalyptic number.

It is an amenable number.

11100090901 is a deficient number, since it is larger than the sum of its proper divisors (6849303).

11100090901 is an equidigital number, since it uses as much as digits as its factorization.

11100090901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6849302.

The product of its (nonzero) digits is 81, while the sum is 22.

The spelling of 11100090901 in words is "eleven billion, one hundred million, ninety thousand, nine hundred one".